More clay in the mixture makes the lead harder. A harder lead has a higher number. Pencils are numbered from 1-3 but most people use a number 2. Harder lead makes a lighter mark and softer lead makes ...

Lost and Frown!, the 2nd graphic novel in Jenny Alvarado's charming, goofy and funny graphic novels for kids, is out in May ...

There are some inventions that look completely pointless to the untrained eye: who would ever need a motorized garbage can, an electric pencil sharpener or a battery-powered eraser? Quite often ...